function [ status ] = mx_eyelink_set_tracker_node( node )
%MX_EYELINK_SET_TRACKER_NODE
%
% Address used for non-connected time requests and message sends. the 
% "proper" way to do this is with the "node" type of functions but we allow a 
% "back door" to simplify higher level support functions. This is also the 
% address used under Windows for looking for tracker (an IP broadcast is used 
% on all other platforms). There is a bug in the Windows networking, causing 
% broadcasts sent on all cards to have the IP source addres of only the first 
% card. This means the tracker sends its connection reply to the wrong address. 
% So the exact address or a subnet broadcast address (i.e. 100.1.1.255 for a 
% subnet mask of 255.255.255.0) needs to be set to that of the tracker.
%
% Parameters:
% node is a string of 16 characters.
%   
%----------------------------------------------------------------------------
% Copyright Eduardo Aponte 2013
% aponteeduardo@gmail.com